The basic idea of data abstraction is to structure programs so that they
operate on abstract data. That is, our programs should use data in such a way
as to make as few assumptions about the data as possible. At the same time, a
concrete data representation is defined as an independent part of the program.
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2.2 Data Abstractionwe can make an
abstraction that separates the way the function is used from the details of how
the function is implemented. Analogously, data abstraction isolates how a
compound data value is used from the details of how it is constructed.
<span>The basic idea of data abstraction is to structure programs so that they
operate on abstract data. That is, our programs should use data in such a way
as to make as few assumptions about the data as possible. At the same time, a
concrete data representation is defined as an independent part of the program.
These two parts of a program, the part that operates on abstract data and the
part that defines a concrete representation, are connected by a small set of
functions that implement abs Summary
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